Booth 10 Foundation

Private foundation · Grantmaker Deerfield, IL EIN: 85-3509159

Booth 10 Foundation is a private foundation, based in Deerfield, IL. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $4.6M in total assets. In 2025, it awarded 6 grants totaling $225K. Net investment income was $258K.

Booth 10 Foundation at a glance

In short: Booth 10 Foundation gave $225K across 6 grants in 2025 (avg $38K), mostly in Arizona. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$225,000
-2.2% vs 2024
Grants made (2025)
6
-25.0% vs 2024
Average grant
$37,500
+30.4% vs 2024
Median grant
$12,500
Total assets
$4,591,658
+0.6% vs 2024
Primary geography
Arizona (91% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who Booth 10 Foundation funds

How this funder distributes its grants

Top Recipients

Top 6 recipients in 2025

Notre Dame Prepatory: $125KNotre Dame Prepatory$125KAssumption Greek Orthodox Church: $60KAssumption Greek OrthodoxChurch$60KSaint Anthony's Greek Orthodox Monastery: $15KSaint Anthony's Greek OrthodoxMonastery$15KHoly Transfiguration Greek Orthodox Monastery: $10KHoly Transfiguration GreekOrthodox Monastery$10KSaint Andrew Greek Orthodox Church: $10KSaint Andrew Greek OrthodoxChurch$10KGreek Orthodox Ladies Philoptochos Society Inc: $5KGreek Orthodox LadiesPhiloptochos Society Inc$5K

The largest 2025 recipient was Notre Dame Prepatory ($125K). Together the top 6 received $225K.

Grant Size Distribution

37 grants across all recorded years

29<$50K6$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 29 grants of 37 (78%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

7states

Share of 2025 grant dollars across all 6 itemized grants.

Cities

ScottsdaleChicagoFlorenceHarvardLos AltosPhoenixBelmontPalantineSouth BendArlington HeightsGreenwood VillageNew YorkWashington

How Booth 10 Foundation gives

  • Giving held roughly steady from 2022 to 2025 (+8%). Method
  • In 2025 it paid out 89% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K1 grant2020 5 grants2021 10 grants2022 8 grants2023 8 grants2024 6 grants2025

From 2020 to 2025, annual grant giving ranged from $93K (2021) to $233K (2023). In 2025 it made 6 grants totaling $225K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Notre Dame Prepatory Scottsdale, AZTo Further Organization's Tax-Exempt Purposes.$125,000
Assumption Greek Orthodox Church Scottsdale, AZTo Further Organization's Tax-Exempt Purposes.$60,000
Saint Anthony's Greek Orthodox Monastery Florence, AZTo Further Organization's Tax-Exempt Purposes.$15,000
Holy Transfiguration Greek Orthodox Monastery Harvard, ILTo Further Organization's Tax-Exempt Purposes.$10,000
Saint Andrew Greek Orthodox Church South Bend, INTo Further Organization's Tax-Exempt Purposes.$10,000
Greek Orthodox Ladies Philoptochos Society Inc Scottsdale, AZTo Further Organization's Tax-Exempt Purposes.$5,000
Your AI grants department

Ready to take the next step with Booth 10 Foundation?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$4,591,658$374,735$266,926$225,0006$251,304$257,939$281,469
2024$4,563,824$194,984$267,596$230,0008$251,707$179,070$261,036
2023$4,615,873$144,257$260,979$232,5008$251,521$143,114$236,490
2022$4,715,449$78,655$222,116$207,50010$214,652$96,205$237,985
2021$4,859,162$126,960$190,034$93,0005$106,592$16,327$245,964
2020$4,981,947$5,091,947$110,000$110,0001—$5,084,464$177,710

Under IRS private-foundation payout rules, Booth 10 Foundation reported a distributable amount of $281K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Booth 10 Foundation is led by Katina Mandas, Co-President on every filing since 2020; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Katina Mandas

    Co-President

    On filings since 2020

    1 hr/week

    No compensation reported

  • Tom Anastasios Gianakakos

    Co-President

    On filings since 2020

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Booth 10 Foundation

How much does Booth 10 Foundation give each year?

Booth 10 Foundation gave $225K across 6 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $230K across 8 grants.

What is Booth 10 Foundation's typical grant size?

Booth 10 Foundation's median grant in 2025 was $12,500, and its average grant was $37,500, across 6 grants on its 2025 IRS Form 990-PF.

Where does Booth 10 Foundation give grants?

Booth 10 Foundation gives mostly in Arizona: 91% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Scottsdale, AZ (3 grants).

Who are Booth 10 Foundation's largest grantees?

Booth 10 Foundation's largest 2025 grantees include Notre Dame Prepatory ($125,000), Assumption Greek Orthodox Church ($60,000) and Saint Anthony's Greek Orthodox Monastery ($15,000), according to its 2025 IRS Form 990-PF. Together they received 89% of its itemized 2025 grant dollars.

How large is Booth 10 Foundation?

Booth 10 Foundation reported $4.6M in total assets on its 2025 IRS Form 990-PF. It paid out $251K in qualifying distributions that year, against a required minimum of $281K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What is Booth 10 Foundation's EIN?

Booth 10 Foundation's EIN (Employer Identification Number) is 85-3509159. IRS Form 990 filing data is available on this page for 2020–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS August 26, 2026)
  2. IRS filings on file for fiscal years 2020–2024

Explore Open Grants

Browse active grant opportunities in Booth 10 Foundation's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

John and Margo Catsimatidis Foundation Inc

New York, NY

The foundation supports organizations in areas including stem cell research, education, hunger relief, heritage, and community support. Its 2024 grants ranged from $5,000 to $200,000, with a median of $50,000; most funding went to New York, with additional grants in Arkansas, Florida, Wisconsin, and Maryland. It gives only to preselected charities and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$14K

Grants

12

Total Given

$678K

James and Virginia Kallins Foundation

Santa Ana, CA

The foundation supports Greek Orthodox churches and institutions and Hellenic organizations, with recent grants concentrated in California and New York and some in Virginia. Its 2024 grants ranged from $100 to $21,550, with a median of $1,500. It does not accept unsolicited requests and gives only to preselected organizations.

Philanthropy, Voluntarism & Grantmaking

Assets

$4.9M

Grants

18

Total Given

$70K

AHEPA 371 Inc

Harrison Township, MI

AHEPA 371 INC supports Orthodox, Hellenic, and community nonprofits, including religious, educational, cultural, and community organizations. In 2024, grants ranged from $500 to $66,300, with a median of $5,000; most funding went to Michigan, with additional grants in Washington, DC, New York, Massachusetts, and Illinois. It accepts unsolicited requests, with application materials available upon request and no stated deadline.

Housing & Shelter

Assets

$4.4M

Grants

23

Total Given

$257K

Spell Family Foundation co William Spell

Minneapolis, MN

The Spell Family Foundation supports religious organizations, education, and groups serving children and people with disabilities, with grants concentrated in Minnesota and also awarded in several other states. In 2024, it made 23 grants totaling $547,524; grants ranged from $250 to $100,000, with a median of $10,000. It accepts letters requesting funds that describe the proposed gift and the organization.

Assets

$10.9M

Grants

23

Total Given

$548K

Buhler Kapsalis Family Foundation

Pleasant Prairie, WI

The foundation supports Greek Orthodox religious institutions, Hellenic education and heritage, Greek American programs, and community services, primarily in Illinois, with grants also reported in New York and elsewhere. Its 2024 grants ranged from $100 to $64,812, with a median of $2,000. It funds only preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$572K

Grants

24

Total Given

$189K

Cathy and George Sakellaris Family

Milton, MA

The foundation supports educational, cultural, religious, and medical organizations, with most of its giving going to Massachusetts and additional grants in several other states. In 2025, grants ranged from $5,000 to $100,000, with a median of $25,000. It funds only preselected charitable organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$7.0M

Grants

24

Total Given

$736K

More similar funders

More Funders in Illinois

The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Booth 10 Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

Booth 10 Foundation down — hundreds of funders to go?

Want AI to do this for you?